53407669709 has 16 divisors (see below), whose sum is σ = 54857917440. Its totient is φ = 51976680000.

The previous prime is 53407669703. The next prime is 53407669729. The reversal of 53407669709 is 90796670435.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53407669709 is a prime.

It is a super-2 number, since 2×53407669709² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53407669703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17736014 + ... + 17739024.

It is an arithmetic number, because the mean of its divisors is an integer number (3428619840).

Almost surely, 2^53407669709 is an apocalyptic number.

It is an amenable number.

53407669709 is a deficient number, since it is larger than the sum of its proper divisors (1450247731).

53407669709 is a wasteful number, since it uses less digits than its factorization.

53407669709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6052.

The product of its (nonzero) digits is 8573040, while the sum is 56.

The spelling of 53407669709 in words is "fifty-three billion, four hundred seven million, six hundred sixty-nine thousand, seven hundred nine".